CA1158138A - Adjustable hub mount for circular saw blade - Google Patents
Adjustable hub mount for circular saw bladeInfo
- Publication number
- CA1158138A CA1158138A CA000379624A CA379624A CA1158138A CA 1158138 A CA1158138 A CA 1158138A CA 000379624 A CA000379624 A CA 000379624A CA 379624 A CA379624 A CA 379624A CA 1158138 A CA1158138 A CA 1158138A
- Authority
- CA
- Canada
- Prior art keywords
- rotational axis
- hub
- hub member
- circular saw
- saw blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
- B23D61/10—Circular saw blades clamped between hubs; Clamping or aligning devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/16—Bushings; Mountings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9372—Rotatable type
- Y10T83/9377—Mounting of tool about rod-type shaft
- Y10T83/9379—At end of shaft
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Nonmetal Cutting Devices (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
ADJUSTABLE HUB MOUNT
FOR CIRCULAR SAW BLADE
Abstract of the Disclosure Adjustable hub mount for circular saw blade which enables the substantial elimination of blade wobble due to non-uniform flatness of the saw blade.
S P E C I F I C A T I O N
_ _ _ _ _ _ _ _ _ _ _ _ _
FOR CIRCULAR SAW BLADE
Abstract of the Disclosure Adjustable hub mount for circular saw blade which enables the substantial elimination of blade wobble due to non-uniform flatness of the saw blade.
S P E C I F I C A T I O N
_ _ _ _ _ _ _ _ _ _ _ _ _
Description
11~8~38 The present invention relates to the cutting or sawing of crystal-line material such as single crystal boules of sapphire. More particularly, the present invention relates to an adjustable hub mount for a circular saw blade used for cutting crystalline material.
Hard crystalline material, e.g. single crystal sapphire boules prepared by the Czochralski technique, is customarily cut into thin slices of wafers in the course of preparing the material for use in the electronics industry. A common practice is to use circular saw blades comprising of steel sheets having a continuousrim diamond blade portion. In the event that the steel sheet is not truly flat, i.e. there is a significant degree of "side run-out", the saw will wobble and induce vibrations in the crystal-line material which can lead to fracture. Also, if "side run-out" develops during operation, the saw must be discarded even though the blade is not worn out unless the "run-out" can be corrected.
Accordingly it is an object of the present invention to provide an adjustable hub mount for circular saw blade which enables the substantial elimination of saw blade "run-out".
Other objects will be apparent from the following description and claims taken in conjunction with the drawing wherein Figures 1 and l(a) show a circular saw blade having a continous rim diamond blade portion Figure 2 showsa cross-section side elevation view of an adjustable hub in accordance with the present invention Figure 3 shows a front elevation view partly in section of a portion of the device of Figure 2 and Figure 4 shows an enlarged view of a portion of the device of Figure 2.
With reference to the drawing, Figure 1 shows at 10 a circular saw having a continous rim diamond blade portion 20 on a circular steel sheet 30.
A condition of "side run-out" is shown, exaggerated for effect at 30. In Figure 2, the circular saw 10 is shown fixedly mounted on a spindle 40 of a conventional saw mechanism which is rotated by a motor 50 to cut unicrystal-line boule 60, e.g. sapphire. A hub mount 70 fits on spindle 40 and is held fixed on spindle 40 by threaded nut 80. A ring member 90, having a flat bearing surface 100 abuts hub mount 70 at 110. Adjacent to ring member 90 is an inner flange 120 which, together with outer flange 130, engages cir-cular saw 10. Inner flange 120 has round portions 140 which contacts flat bearing surface 100 of ring member 90. A threaded ring 150 engages hub mount 70. Adjustable screws 160, 162, 164, 166, shown also in Figure 3, engage threaded ring 150 and contact outer flange 130. In the event that circular saw 10 has, or develops, a "side run-out" such as shown at 30 in Figure lla), adjustment of a pair of opposite screws, e.g. 160, 164; 162, 166 will sub-stantially eliminate the "run-out". By way of example, with reference to Figure 4, if a "side run-out" condition exists as illustrated at 170, adjust-ment of screw 162 to advance screw 162 in the direction shown will cause outer flange 130 and inner flange 120 to move in the same direction since round portion 140 of inner flange 120 will travel on the flat bearing surface 100 of ring 90 in the direction indicated at 180. As a result, saw 10 will be moved from "run-out" position 170 to the desired position shown in Figure 4.
When screw 162 is advanced as shown in Figure 4, the opposite screw 166 must be concurrently withdrawn to enable the movement of inner flange 120 as de-scribed above. That is to say, radially opposite adjustable screws are caused to travel in opposite directions in the course of "run-out" correction.
As can be readily seen, "side run-out" in any quadrant of saw 10 can be cor-rected by adjustment of radially opposite adjustable screws with the result that damage to the material being cut is avoided and saw life is extended.
In the device of the present invention the flat bearing surface 140 of ring member 90 is at an angle of 35 to 50 , preferably 45 , with the axis of motor spindle 40; the rotational axes of hub member 70, ring member 90, flanges 120 and 130, and threaded ring 150 are coincident. The axes of screws 160, 162, 164, 166 are parallel to the rotational axis of motor spindle 40 and the screws are located equidistant from the axis and from each other. With the device of the present invention "side run-out" is minimized and saw blade "wobble" i~ avoided.
Hard crystalline material, e.g. single crystal sapphire boules prepared by the Czochralski technique, is customarily cut into thin slices of wafers in the course of preparing the material for use in the electronics industry. A common practice is to use circular saw blades comprising of steel sheets having a continuousrim diamond blade portion. In the event that the steel sheet is not truly flat, i.e. there is a significant degree of "side run-out", the saw will wobble and induce vibrations in the crystal-line material which can lead to fracture. Also, if "side run-out" develops during operation, the saw must be discarded even though the blade is not worn out unless the "run-out" can be corrected.
Accordingly it is an object of the present invention to provide an adjustable hub mount for circular saw blade which enables the substantial elimination of saw blade "run-out".
Other objects will be apparent from the following description and claims taken in conjunction with the drawing wherein Figures 1 and l(a) show a circular saw blade having a continous rim diamond blade portion Figure 2 showsa cross-section side elevation view of an adjustable hub in accordance with the present invention Figure 3 shows a front elevation view partly in section of a portion of the device of Figure 2 and Figure 4 shows an enlarged view of a portion of the device of Figure 2.
With reference to the drawing, Figure 1 shows at 10 a circular saw having a continous rim diamond blade portion 20 on a circular steel sheet 30.
A condition of "side run-out" is shown, exaggerated for effect at 30. In Figure 2, the circular saw 10 is shown fixedly mounted on a spindle 40 of a conventional saw mechanism which is rotated by a motor 50 to cut unicrystal-line boule 60, e.g. sapphire. A hub mount 70 fits on spindle 40 and is held fixed on spindle 40 by threaded nut 80. A ring member 90, having a flat bearing surface 100 abuts hub mount 70 at 110. Adjacent to ring member 90 is an inner flange 120 which, together with outer flange 130, engages cir-cular saw 10. Inner flange 120 has round portions 140 which contacts flat bearing surface 100 of ring member 90. A threaded ring 150 engages hub mount 70. Adjustable screws 160, 162, 164, 166, shown also in Figure 3, engage threaded ring 150 and contact outer flange 130. In the event that circular saw 10 has, or develops, a "side run-out" such as shown at 30 in Figure lla), adjustment of a pair of opposite screws, e.g. 160, 164; 162, 166 will sub-stantially eliminate the "run-out". By way of example, with reference to Figure 4, if a "side run-out" condition exists as illustrated at 170, adjust-ment of screw 162 to advance screw 162 in the direction shown will cause outer flange 130 and inner flange 120 to move in the same direction since round portion 140 of inner flange 120 will travel on the flat bearing surface 100 of ring 90 in the direction indicated at 180. As a result, saw 10 will be moved from "run-out" position 170 to the desired position shown in Figure 4.
When screw 162 is advanced as shown in Figure 4, the opposite screw 166 must be concurrently withdrawn to enable the movement of inner flange 120 as de-scribed above. That is to say, radially opposite adjustable screws are caused to travel in opposite directions in the course of "run-out" correction.
As can be readily seen, "side run-out" in any quadrant of saw 10 can be cor-rected by adjustment of radially opposite adjustable screws with the result that damage to the material being cut is avoided and saw life is extended.
In the device of the present invention the flat bearing surface 140 of ring member 90 is at an angle of 35 to 50 , preferably 45 , with the axis of motor spindle 40; the rotational axes of hub member 70, ring member 90, flanges 120 and 130, and threaded ring 150 are coincident. The axes of screws 160, 162, 164, 166 are parallel to the rotational axis of motor spindle 40 and the screws are located equidistant from the axis and from each other. With the device of the present invention "side run-out" is minimized and saw blade "wobble" i~ avoided.
Claims
What is claimed is:
An adjustable hub for a rotating saw comprising a hub member for surroundably engaging a motor spindle of a rotating saw such that the rota-tional axis of said hub member and motor spindle are coincident; a ring member having its rotational axis coincident with the rotational axis of the hub member and having a flat bearing surface at an angle of about 45 with the notational axis of said hub member; a first flange member having its rotational axis coincident with the rotational axis of said hub member and having a rounded bearing surface in contact with said flat bearing surface;
a second flange member having its rotational axis coincident with the rota-tional axis of the hub member and located adjacent said first flange member for engaging a circular saw between said first and second flange member; a threaded ring member having its rotational axis coincident with the rotational axis of said hub member and threadably engaged to said hub member; at least two pairs of independently adjustable screws engaged with said threaded ring member and passing through said threaded ring member parallel to the rotational axis of the hub member to contact said second flange member, said adjustable screws being located equidistant from the axis of the hub member and from each other.
An adjustable hub for a rotating saw comprising a hub member for surroundably engaging a motor spindle of a rotating saw such that the rota-tional axis of said hub member and motor spindle are coincident; a ring member having its rotational axis coincident with the rotational axis of the hub member and having a flat bearing surface at an angle of about 45 with the notational axis of said hub member; a first flange member having its rotational axis coincident with the rotational axis of said hub member and having a rounded bearing surface in contact with said flat bearing surface;
a second flange member having its rotational axis coincident with the rota-tional axis of the hub member and located adjacent said first flange member for engaging a circular saw between said first and second flange member; a threaded ring member having its rotational axis coincident with the rotational axis of said hub member and threadably engaged to said hub member; at least two pairs of independently adjustable screws engaged with said threaded ring member and passing through said threaded ring member parallel to the rotational axis of the hub member to contact said second flange member, said adjustable screws being located equidistant from the axis of the hub member and from each other.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US163,513 | 1980-06-27 | ||
US06/163,513 US4326361A (en) | 1980-06-27 | 1980-06-27 | Adjustable hub mount for circular saw blade |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1158138A true CA1158138A (en) | 1983-12-06 |
Family
ID=22590342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000379624A Expired CA1158138A (en) | 1980-06-27 | 1981-06-12 | Adjustable hub mount for circular saw blade |
Country Status (3)
Country | Link |
---|---|
US (1) | US4326361A (en) |
JP (1) | JPS5727618A (en) |
CA (1) | CA1158138A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111618361A (en) * | 2020-06-02 | 2020-09-04 | 烟台孚信达双金属股份有限公司 | Saw cutting method for copper-aluminum composite bar |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4716881A (en) * | 1986-10-01 | 1988-01-05 | Silicon Technology Corporation | Blade mount for inner diameter saw blade |
JPH01121654U (en) * | 1988-02-15 | 1989-08-17 | ||
JP3343670B2 (en) * | 1997-01-10 | 2002-11-11 | 株式会社共立 | Cutter blade holding plate structure |
ATE197008T1 (en) * | 1997-05-13 | 2000-11-15 | August Heinr Schmidt Gmbh & Co | GRINDING DISC FOR PROCESSING METAL CIRCULAR SAW BLADES |
US6769184B1 (en) * | 1998-07-22 | 2004-08-03 | Bettcher Industries, Inc. | Low friction rotary knife |
DE10041210C2 (en) * | 1999-08-30 | 2002-07-11 | Otto Martin Maschb Gmbh Fa | circular saw |
US20060115337A1 (en) * | 2004-12-01 | 2006-06-01 | Fusao Higashi | Runout eliminating collet chuck |
US20070283573A1 (en) * | 2006-06-09 | 2007-12-13 | Hantover, Inc. | Rotary knife with blade bushing |
US8448340B2 (en) * | 2010-02-01 | 2013-05-28 | Bettcher Industries, Inc. | Large diameter notched blade and blade housing for power operated rotary knife |
US8756819B2 (en) | 2010-04-12 | 2014-06-24 | Bettcher Industries, Inc. | Power operated rotary knife with disposable blade support assembly |
US8950076B2 (en) | 2011-07-25 | 2015-02-10 | Bettcher Industries, Inc. | Power operated rotary knife |
US8739416B2 (en) | 2011-07-25 | 2014-06-03 | Bettcher Industries, Inc. | Power operated rotary knife |
US8806761B2 (en) | 2011-07-25 | 2014-08-19 | Bettcher Industries, Inc. | Power operated rotary knife |
US8745881B2 (en) | 2011-07-25 | 2014-06-10 | Bettcher Industries, Inc. | Power operated rotary knife |
US8695222B2 (en) | 2011-07-25 | 2014-04-15 | Bettcher Industries, Inc. | Power operated rotary knife |
US8726524B2 (en) | 2011-07-25 | 2014-05-20 | Bettcher Industries, Inc. | Power operated rotary knife |
US10022146B2 (en) | 2015-05-29 | 2018-07-17 | Exsurco Medical, Inc. | Power operated rotary excision tool |
US10537356B2 (en) | 2014-06-16 | 2020-01-21 | Exsurco Medical, Inc. | Power operated rotary excision tool |
USD907205S1 (en) | 2012-09-07 | 2021-01-05 | Exsurco Medical, Inc. | Power operated rotary excision tool |
DE102014105130A1 (en) * | 2014-04-10 | 2015-10-15 | Weber Maschinenbau Gmbh Breidenbach | Knife and knife holder for a cutting machine |
US9833919B2 (en) | 2015-10-02 | 2017-12-05 | Bettcher Industries, Inc. | Power operated rotary knife |
US10471614B2 (en) | 2016-12-09 | 2019-11-12 | Bettcher Industries, Inc. | Cam-actuated split blade housing for power operated rotary knife |
US10124500B2 (en) | 2016-12-09 | 2018-11-13 | Bettcher Industries, Inc. | Cam-actuated split blade housing for power operated rotary knife |
US10040211B2 (en) | 2016-12-09 | 2018-08-07 | Bettcher Industries, Inc. | Power operated rotary knife |
USD973115S1 (en) | 2018-01-26 | 2022-12-20 | Bettcher Industries, Inc. | Annular blade |
US11065780B2 (en) * | 2018-07-23 | 2021-07-20 | Nap Asset Holdings Ltd. | Adjusting mechanism for a cutting tool |
USD912489S1 (en) | 2019-06-13 | 2021-03-09 | Bettcher Industries, Inc. | Housing for a power operated rotary knife |
US11077571B2 (en) | 2019-10-02 | 2021-08-03 | Bettcher Industries, Inc. | Split blade housing with expansion sleeve assembly for power operated rotary knife |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1459683A (en) * | 1922-09-14 | 1923-06-19 | George L Norris | Centering and clamping means for saws and other articles |
US2398664A (en) * | 1943-09-29 | 1946-04-16 | Christ D Paul | Adapter for grinding wheels |
US2841928A (en) * | 1956-12-26 | 1958-07-08 | Super Cut | Truing device for peripheral type grinding wheels |
US2841929A (en) * | 1956-12-26 | 1958-07-08 | Super Cut | Truing device for peripheral type grinding wheels |
US3646711A (en) * | 1969-08-12 | 1972-03-07 | Toyoda Machine Works Ltd | Mounting adapter assembly |
-
1980
- 1980-06-27 US US06/163,513 patent/US4326361A/en not_active Expired - Lifetime
-
1981
- 1981-06-12 CA CA000379624A patent/CA1158138A/en not_active Expired
- 1981-06-24 JP JP9678881A patent/JPS5727618A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111618361A (en) * | 2020-06-02 | 2020-09-04 | 烟台孚信达双金属股份有限公司 | Saw cutting method for copper-aluminum composite bar |
Also Published As
Publication number | Publication date |
---|---|
JPS5727618A (en) | 1982-02-15 |
JPS613641B2 (en) | 1986-02-03 |
US4326361A (en) | 1982-04-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |